Lozen Tech Park is a high-tech business park located at the foot of Lozen Mountain, on the southeastern edge of Sofia, Bulgaria. Designed by IPA - Architecture and more, the project proposes an alternative to the conventional urban workplace by combining flexible office environments with a landscape-led spatial structure and a strong connection to its natural setting.
The masterplan is based on a simple principle: the spaces between the buildings are treated as an essential part of the working environment rather than as residual areas. Most vehicular movement is removed from the active center of the development, with parking and service access located underground and along the perimeter. This allows the ground level to function as a continuous pedestrian landscape connecting buildings, entrances, shared amenities, and outdoor workspaces.
Landscape plays an organizational role throughout the project. Courtyards, planted routes, water features, shaded seating areas, and smaller gardens establish a sequence of spaces with different degrees of openness and privacy. Larger gathering areas support social interaction and informal meetings, while more secluded zones provide settings for focused work and rest. The low-rise buildings maintain direct visual and physical connections with these outdoor spaces, and their orientation opens views toward Lozen Mountain.
Rather than being conceived as isolated office blocks, the buildings are arranged as a sequence of volumes that frame courtyards, pedestrian passages, and landscaped areas. Their placement creates a gradual transition between public, shared, and more private spaces. Entrances and common areas are positioned along the primary pedestrian routes, helping to activate the ground level and reinforcing connections between interior and exterior throughout the day.
Flexibility is a central part of the architectural strategy. Office spaces can accommodate organizations of different scales, from small teams and start-ups to research groups and larger technology companies. Floor plates can be subdivided, combined, and reorganized according to changing requirements, while individual buildings can operate independently within the wider development. This adaptability allows companies to grow or change their internal organization without requiring a fundamentally different building type.
The workplace also extends beyond the buildings themselves. Compact enclosed work modules are positioned within the landscaped areas and provide additional settings for individual work, private meetings, or short-term use. Together with outdoor seating and informal meeting areas, these spaces create a wider range of working conditions and blur the conventional boundary between office and landscape.
The architectural language is deliberately restrained. Low-rise volumes, glazed surfaces, solid vertical elements, and clearly articulated entrances establish a consistent identity across the development. Transparency is concentrated around shared areas and circulation spaces, creating visual connections between indoor activity and the surrounding landscape, while more enclosed façade zones provide privacy and environmental control where required.
Shared amenities are distributed across Lozen Tech Park rather than concentrated in a single location. This encourages movement between buildings and creates opportunities for interaction between employees, visitors, and different organizations. Everyday circulation therefore becomes part of the social structure of the project, while the landscaped spaces support both planned and informal encounters.
The first phase of Lozen Tech Park has been completed and includes two buildings with office and retail functions, a supermarket, restaurant, canteen, cafés, underground parking, and extensive landscaped areas for walking and recreation. The project is planned to continue in subsequent phases while maintaining the same spatial principles and architectural identity.
Lozen Tech Park is defined less by individual architectural objects than by the relationships between them. Buildings, landscape, circulation, and shared functions are designed as parts of one spatial system, creating a pedestrian-oriented working environment that can adapt over time while remaining closely connected to its natural surroundings.
